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| author | Stephen Crane <sjc@immunant.com> | 2017-12-11 14:58:38 -0800 |
|---|---|---|
| committer | Sriraman Tallam <tmsriram@google.com> | 2017-12-11 14:58:38 -0800 |
| commit | c4e648430f3c5c135310f87280d45dba581aaa7b (patch) | |
| tree | 026ea986bfbb2b5856062f4507404f4f00d2d27c /include | |
| parent | 4c5ae11b42433dbffc33fbde75c9e415594504d8 (diff) | |
| download | gdb-c4e648430f3c5c135310f87280d45dba581aaa7b.zip gdb-c4e648430f3c5c135310f87280d45dba581aaa7b.tar.gz gdb-c4e648430f3c5c135310f87280d45dba581aaa7b.tar.bz2 | |
Add plugin API for processing plugin-added input files
Gold plugins may wish to further process an input file added by a plugin. For
example, the plugin may need to assign a unique segment for sections in a
plugin-generated input file. This patch adds a plugin callback that the linker
will call when reading symbols from a new input file added after the
all_symbols_read event (i.e. an input file added by a plugin).
2017-12-11 Stephen Crane <sjc@immunant.com>
* plugin-api.h: Add new plugin hook to allow processing of input
files added by a plugin.
(ld_plugin_new_input_handler): New function hook type.
(ld_plugin_register_new_input): New interface.
(LDPT_REGISTER_NEW_INPUT_HOOK): New enum val.
(tv_register_new_input): New member.
* plugin.cc (Plugin::load): Include hooks for register_new_input
in transfer vector.
(Plugin::new_input): New function.
(register_new_input): New function.
(Plugin_manager::claim_file): Call Plugin::new_input if in
replacement phase.
* plugin.h (Plugin::set_new_input_handler): New function.
* testsuite/plugin_new_section_layout.c: New plugin to test
new_input plugin API.
* testsuite/plugin_final_layout.sh: Add new input test.
* testsuite/Makefile.am (plugin_layout_new_file): New test case.
* testsuite/Makefile.in: Regenerate.
Diffstat (limited to 'include')
| -rw-r--r-- | include/ChangeLog | 9 | ||||
| -rw-r--r-- | include/plugin-api.h | 18 |
2 files changed, 26 insertions, 1 deletions
diff --git a/include/ChangeLog b/include/ChangeLog index ef1cfe0..8914e26 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,12 @@ +2017-12-11 Stephen Crane <sjc@immunant.com> + + * plugin-api.h: Add new plugin hook to allow processing of input + files added by a plugin. + (ld_plugin_new_input_handler): New function hook type. + (ld_plugin_register_new_input): New interface. + (LDPT_REGISTER_NEW_INPUT_HOOK): New enum val. + (tv_register_new_input): New member. + 2017-12-01 Peter Bergner <bergner@vnet.ibm.com> * opcode/ppc.h (PPC_INT_FMT): Define. diff --git a/include/plugin-api.h b/include/plugin-api.h index 3a3e8b4..f081f85 100644 --- a/include/plugin-api.h +++ b/include/plugin-api.h @@ -365,6 +365,20 @@ enum ld_plugin_status (*ld_plugin_get_input_section_size) (const struct ld_plugin_section section, uint64_t *secsize); +typedef +enum ld_plugin_status +(*ld_plugin_new_input_handler) (const struct ld_plugin_input_file *file); + +/* The linker's interface for registering the "new_input" handler. This handler + will be notified when a new input file has been added after the + all_symbols_read event, allowing the plugin to, for example, set a unique + segment for sections in plugin-generated input files. */ + +typedef +enum ld_plugin_status +(*ld_plugin_register_new_input) (ld_plugin_new_input_handler handler); + + enum ld_plugin_level { LDPL_INFO, @@ -407,7 +421,8 @@ enum ld_plugin_tag LDPT_UNIQUE_SEGMENT_FOR_SECTIONS = 27, LDPT_GET_SYMBOLS_V3 = 28, LDPT_GET_INPUT_SECTION_ALIGNMENT = 29, - LDPT_GET_INPUT_SECTION_SIZE = 30 + LDPT_GET_INPUT_SECTION_SIZE = 30, + LDPT_REGISTER_NEW_INPUT_HOOK = 31 }; /* The plugin transfer vector. */ @@ -441,6 +456,7 @@ struct ld_plugin_tv ld_plugin_unique_segment_for_sections tv_unique_segment_for_sections; ld_plugin_get_input_section_alignment tv_get_input_section_alignment; ld_plugin_get_input_section_size tv_get_input_section_size; + ld_plugin_register_new_input tv_register_new_input; } tv_u; }; |